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<!DOCTYPE html>
<html>
<head>
<title>
Test passing SharedArrayBuffer to an AudioWorklet
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webaudio/resources/audit.js"></script>
</head>
<body>
<script id="layout-test-code">
let audit = Audit.createTaskRunner();
let context = new AudioContext();
let filePath = 'processors/sharedarraybuffer-processor.js';
audit.define(
'Test postMessage from AudioWorkletProcessor to AudioWorkletNode',
(task, should) => {
let workletNode =
new AudioWorkletNode(context, 'sharedarraybuffer-processor');
// After it is created, the worklet will send a new
// SharedArrayBuffer to the main thread.
//
// The worklet will then wait to receive a message from the main
// thread.
//
// When it receives the message, it will check whether it is a
// SharedArrayBuffer, and send this information back to the main
// thread.
workletNode.port.onmessage = (event) => {
let data = event.data;
switch (data.state) {
case 'created':
should(
data.sab instanceof SharedArrayBuffer,
'event.data.sab from worklet is an instance of SharedArrayBuffer')
.beTrue();
// Send a SharedArrayBuffer back to the worklet.
let sab = new SharedArrayBuffer(8);
workletNode.port.postMessage(sab);
break;
case 'received message':
should(data.isSab, 'event.data from main thread is an instance of SharedArrayBuffer')
.beTrue();
task.done();
break;
default:
should(false,
`Got unexpected message from worklet: ${data.state}`)
.beTrue();
task.done();
break;
}
};
workletNode.port.onmessageerror = (event) => {
should(false, 'Got messageerror from worklet').beTrue();
task.done();
};
});
context.audioWorklet.addModule(filePath).then(() => {
audit.run();
});
</script>
</body>
</html>
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